As we all know, the engine speedometer in a car dashboard can monitor and display the engine speed in real-time, such as 1200 revolutions per minute. If we perform open-source hardware programming with a Raspberry Pi, utilizing a Hall sensor to detect magnetic fields and count the number of rotations, we can ultimately develop a … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us 1. Hardware Configuration One Raspberry Pi 3B+ board One 16GB memory card One card reader One power cable One Ethernet cable One laptop One mouse One HDMI cable One TV monitor 2. Software Configuration 1. Operating System: 2019-07-10-raspbian-buster 2. Remote Connection: PuTTY 3. Remote Desktop: … Read more
The following video is sourced from Tree Information Technology 【Copyright Statement】 Authorized reprint by Tree Technology, this account aims to disseminate quality resources to better meet the needs of Raspberry Pi enthusiasts. The work is a public reprint, sourced from Bilibili, open the original text for reading. The course is about Python programming on Raspberry … Read more
The following video is provided by Tree Information Technology. 【Copyright Statement】 Authorized by Tree Technology for reprint, this account aims to disseminate quality resources to better meet the needs of Raspberry Pi enthusiasts. This work is publicly reprinted, source Bilibili, open from the original text. The course is Python programming for Raspberry Pi, recommended for … Read more
It is believed that the first task for anyone learning Arduino or other microcontrollers is to light up an LED, similar to the ‘Hello World’ program in C language. This time, we will also try to light up an LED using the GPIO of the Raspberry Pi. 1. Understanding Raspberry Pi B’s GPIO GPIO (General-purpose … Read more
The following video is from Tree Information Technology. 【Copyright Statement】 Tree Technology is authorized to reprint. This account aims to disseminate quality resources to better meet the needs of Raspberry Pi enthusiasts. The work is publicly reprinted, source from Bilibili, open from the original text. The course is about Python programming for Raspberry Pi, recommended … Read more
0x00 What Is SDR? “Software Defined Radio (SDR)” has actually been researched and developed for decades, originating from the U.S. military’s multi-mode radio project. Currently, software-defined radio technology is widely used in our daily mobile communication systems. For example, the signal processing in base stations heavily utilizes programmable FPGAs and DSPs. In smartphones, baseband processors … Read more
Previously, the development of four-legged robots was mainly based on microcontrollers. Currently, the overall price of STM32 has risen, making it very difficult to select the main controller chip. Additionally, the computing power of microcontrollers is still insufficient for four-legged robots. Currently, the control frequency of the entire robot’s code execution has significantly decreased compared … Read more
Today, I will build a numeric keypad based on the Raspberry Pi Pico. I will create a simple orthogonal numeric keypad with 20 switches. Then, I will introduce how to install KMK firmware on it. KMK can be installed on Python-based microcontrollers. It is used for some simple projects, from numeric keypads to full-sized keyboards. … Read more
In previous sections, we used the GPIO output function for the LED lights. This time, we will finally need to use the GPIO input function. The human infrared sensing module is quite simple to use. After completing our experiment, we will combine it with the previous buzzer to create a simple human detection alarm. 1. … Read more